US3042822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treated carbon brush
Assignee: General Electric Co
•
Filing: 1960-11-21
•
Granted: 1962-07-03
•
Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert H Savage
- 👤 Guarnier Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:01
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/18; H01R39/20; H01B; H01B1/00; H01B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A CHUNK TYPE CARBON ELECTRICAL CONTACT MAKING BRUSH COMPRISING IN COMBINATION, A CARBON BRUSH MATRIX BODY, A PLURALITY OF LUBRICANT CHUNKS DISPERSED THROUGHOUT SAID BODY AND A VANADIUM COMPOUND IN SAID BRUSH, SAID BRUSH PRODUCED IN PART BY ADDING V2O5 THERETO AND FIRING AT LEAST ABOVE THE MELTING POINT OF V2O5.
Claim 2
Dependent Claim
51 words
A CHUNK TYPE CARBON ELECTRICAL CONTACT MAKING BRUSH COMPRISING IN COMBINATION, A CARBON BRUSH MATRIX BODY, A PLURALITY OF LUBRICANT CHUNKS DISPERSED THROUGHOUT SAID BODY AND A VANADIUM COMPOUND IN SAID BRUSH, SAID BRUSH PRODUCED IN PART BY ADDING V2O5 THERETO AND FIRING AT LEAST ABOVE THE MELTING POINT OF V2O5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |